Filtering apparatus for use in connection with the washing of slimes and for other similar purposes.



- J. F. WEBB. 1 FILTBRING APPARATUS FOR USE IN CONNECTION WITH THEWASHING 0P SLIMES AND FOR OTHER SIMILAR PURPOSES.

'APPLIOATIONIILED 1142,1909;

"Patented Aug. 30, 1910.

2 SHEETS-SHEET 1.

R M T Rn m. w x M W X 1 D 1 H QN M .|1..I..| 1h 4 5 W 1TH ESSES J'. F.WEBB. FILTEBING APPARATUS FOR USE IN CONNECTION WITH THE VLVASHING 0FSLIMES AND \30, 19119. 2 SHEETS-SHEET 2.

FOR OTHER SIMILAR PURPOSES. APPLICATION FILED APR. 12, 1909. w 968,720.Patented Au INVENTOR W TNESSES i U r'r S iPg'TENT Flt).

JOHN FREDERICK WEBB, or BATTERSEA, Lennon, ENGLAND, ASSIGNOR TOHIMSELF,-

ACN'ID PERCY. .TARBULT, OF LONDON, ENGLAND.

FILTERING APPARATUS FOR USE IN CGNNECTION WITH THE WASHING 0F SLIIVIESAND FOR OTHER SIMILAR PURPOSES.

Specification 01" Letters Patent.

Application filed April 12. 1909.

Patented Aug. 30, 1910. Serial No. 489,398.

To all whom it may concern:

Be it known that 1, Jon); FREDERICK W'nnn, a subject of Great Britainand Ire This invention relates to filtering appa-.

ratus for use in connection with the washing of slimes and for othersimilar purposes, and has for its object the construction andarrangement of meehanisn'i whereby the above purpose can be carried outwith celerity and efiiciency and at a moderate capital expenditure.

In order that the invention may be the better understood I will nowproceed to describe the same in relation to the accompanying drawings,reference being had to the letters and figures marked thereon.

Like letters refer to like parts in the various figures.

Figure 1 is an end elevation of a machine made in accordance with myinvention, the filtering element being shown in full lines in its raisedposition for receiving the wash water and discharging the solid residue,and

in dotted lines in the taultready for receiving the slime. Fig. .2 is aside elevation of the same. Fig. 3 is a detail sectional view of thefiltering element showing the "pipe connections. Fig. -l is a sectionalview of a part of the filtering element showing the method ofholding'the filtering cloth in position. Fig. 5 shows detail views ofthe ad justahle pivoting device for controlling the movement of thefiltering element.

The filtering element consists of a metal plate at having a stitl'eningbar a riveted all around the edge thereof and supported on a woodenframe a by means of bolts a.

Upon the metal plate a are arranged distance pieces a on which issupported a perforated )late a to form a sustaining sup ort for theltering cloth a. Angle iron sti eners a are riveted to the back side or.the plate (a, to support the same longitudinally.

The til tering element is pi votallv carried on arms 7) rigidly mountedon a shaft 7. carried in hearings b the filtering element being pivotedon pins 7) passing through lugs on the a so as to insure support Z). TheWeight of the filtering element is counter-balanced to a more or lessextent by counter weights 0 carried at the ends of the ropes a passingover pulleys c and attached to trunnions 1: carried at the ends of thefiltering element. On the center bearing (1 is mounted a bracket 0 whichadjustably carries the pin on to which is pivoted one end of theconnecting rod 0, while the other end of the connecting rod is pivotedto a bracket 0 attached to the frame a of the filtering element. Thebracket 0 is slotted, and slidingly carries a block in which is mountedthe pin 0 the position of the block 0 in the slot being maintained afteradjustment by jamming screws 0. A. similar arrangement is provided atoneend of the connecting rod 0, the block 0 in this case being providedwith a hole 0 sons to journal on the pin the position of the block 0 inthe slot in the connecting rod 0 being maintainedv after adjustment byjamming bolts 0".

The operating gear consists of a- Worm sector (1 fixedly mounted uponthe shaft b into which engages the Worm d carried on the shaft vi thelatter having loose pulleys d and (Z and a fast pulley (1 provided atthe outer end, on which run belts cl and The belts are controlled bystriking gear (i of the usual pattern automatically 0 erated at the endof each stroke by means 0 a projecting finger 0? adapted to coast withpins d carried by the sector d, so as to remove the operative belt fromthe fastdpulley (Z to one of the loose pulleys d or t at each end of thestroke, in order to bring the filtering element to rest at the extremeends of movement.

The filtering cloth a is carried around the edges of the filteringelement and disposed m a groove a where it is maintained in place byelastic packing a or in any other suitable manner. The liquid drawnthrough the filtering cloth (1 passes through the perforated plate ainto the space between said plate a and the plate a, and drains away bymeans of pipes 6 connected to the pipe 6 passing along the center of theshaft 11 by means of a flexible pipe 6, vent or balance ipes connectedwith the upper part 01' the filtcrin element as shown in full lines inFig. 1, being coupled up with the pipes the liquid being drained.

any Water logging behind material for treatment, into which the filter-.

ing element is lowered into a horizontal position ready to receive thesolid residue on the outer surface of the filter cloth a.

In order to maintain the solid and liquid constituents of the materialunder treatment thoroughly mixed, a reciprocating agitator gis disposedalong the bottom of the tank f and is carried on rollers 9 adapted torun on brackets 9 carried on the sides of the Po tank and to bereciprocated by any suitable means such as a crank or eccentric motiondevice driving a connecting rod g from my suite ble source of motion.

The pipe 6 is connect-ed to any exhausting means such as a vacuum pumpwhich will tend to draw the liquid through the filter cloth from thetank and the solid. residue on to the surface of the alter clot In orderto Wash the solid residue before discharging it from the filter cloth,Water rays it are pro d which deliver Water to the calzed residue. Theoperation or the machine is as follows :-"ll1e filtering element isfirst lowered into the tank f as shown in dotted lines in esa'reo of thesolid residue it can be removed from I the filter cloth. The beltstriking gear is then operated. by the attendant when the filteringelement returns to the tank and autoinatically stops in a horizontalposition,

ready to receive a fresh charge of solid ma terial. v

Having now particularly described and ascertained the nature of my saidmvention and in What manner the same is to be per position of rest outof the tank.

2. A filtering apparatus comprising a tank, rotary shaft, arms on saidshaft, a

filtering element I ivotally mounted on said arms, a bridle r0 connectedto said element at one end, a fixed ivot connected to the other end ofsaid ro and means for rotating said shaft.

8. A filtering apparatus comprising a tank, a rotary shaft located abovethe tanlg arms on oted to said arms, bracket carrying a fixed pivot, arod connected to the filtering element at one end and having its otherend connected to the fixed pivot, means for adjusting the connection. ofthe rod with the pivot, and means for rotating the shaft.

In Witness whereof I have hereunto set my hand in presence of twowitnesses.

JGHN FREDERICK WEBB. Witnesses RIoHAno ELFOFFMANN r ll-FREQ Rommel.

said shaft, a filtering element piv-'

